Thermal energy storage technology has been around for a long time but has often been overlooked. Now, Lab scientists are making a concerted push to take thermal energy storage to the next level by looking at developing next-generation materials and systems to be used as a heating or cooling medium. https://newscenter.lbl.gov/2021/11/18/turning-up-the-heat-thermal-energy-storage-could-play-major-role-in-decarbonizing-buildings/